Upload the 5MB master once. The studio makes the 1,400px web file, the 3,200px gallery file and the Yarrow Protect version from it, writes the Protect code to the record, and tells you each thing it does.
Drop masters here
One or many. Each file is matched to its record by name, and nothing is uploaded until you confirm. You can change any match by hand.
Check before anything is uploaded
Each file, the record it will go to, and what will be made.